Aerating device for aquarium

Abstract

A water aerating device for an aquarium includes a carrier, a pumping device attached to the carrier and having a motorized impeller for pumping a water, a siphon tube coupled to the pumping device and having a tube member engaged into the aquarium for allowing the water to be drawn into the siphon tube and drawn into the carrier by the impeller, and a number of rods disposed in the carrier for agitating the water and for minimizing an air contained in the water into smaller air bubbles. One or more air minimizing devices or helical spring members may further agitate the water and minimize the air contained in the water for supplying the reduced air bubbles to the water plants or the water weeds.

1 . A water aerating device for an aquarium comprising:
 a carrier for attaching to a container of the aquarium and including a compartment formed therein,   a pumping device attached to the carrier and including a motorized impeller arranged in said compartment of said carrier for pumping and impelling a water received in the container,   a siphon tube including a first tube member coupled to said pumping device, and including a second tube member engaged into the container for allowing the water in the container to be drawn into said siphon tube and drawn into said compartment of said carrier by said motorized impeller, and   a plurality of rods disposed in said compartment of said carrier for agitating the water pumped by said motorized impeller and for minimizing an air contained in the water into smaller air bubbles.   
     
     
         2 . The water aerating device as claimed in  claim 1 , wherein said pumping device includes a mouth, said motorized impeller is disposed in said mouth for pumping the water. 
     
     
         3 . The water aerating device as claimed in  claim 2 , wherein said pumping device includes at least one aperture formed in said mouth for allowing the water pumped by said motorized impeller to flow out through said at least one aperture of said mouth and to flow into said compartment of said carrier. 
     
     
         4 . The water aerating device as claimed in  claim 2 , wherein said pumping device includes a barrel attached to said mouth of said pumping device and coupled to said first tube member of said siphon tube. 
     
     
         5 . The water aerating device as claimed in  claim 1 , wherein said siphon tube includes a conduit engaged into said first tube member of said siphon tube for directing the air into said siphon tube. 
     
     
         6 . The water aerating device as claimed in  claim 5 , wherein said siphon tube includes a valve device attached to said siphon tube and coupled to said conduit and having an entrance for allowing the air to flow into said valve device and said conduit. 
     
     
         7 . The water aerating device as claimed in  claim 6 , wherein said siphon tube includes a valve member attached to said valve device for controlling the air into said valve device. 
     
     
         8 . The water aerating device as claimed in  claim 5 , wherein said siphon tube includes an outlet member attached to the conduit and having a perforation formed therein and communicating with said first tube member of said siphon tube. 
     
     
         9 . The water aerating device as claimed in  claim 8 , wherein said outlet member includes an outer peripheral flange extended outwardly therefrom for engaging with and for agitating the water drawn by said pumping device. 
     
     
         10 . The water aerating device as claimed in  claim 1 , wherein a board is engaged into said carrier and disposed on said compartment of said carrier for closing said compartment of said carrier. 
     
     
         11 . The water aerating device as claimed in  claim 10 , wherein said rods are extended from said board. 
     
     
         12 . The water aerating device as claimed in  claim 10 , wherein said board includes an outlet port formed therein, and a dirt collecting device includes a receptacle coupled to said outlet port of said board. 
     
     
         13 . The water aerating device as claimed in  claim 12 , wherein said receptacle includes a tube disposed in said receptacle and disposed on said pumping device for forming an annular space between said receptacle and said tube and for receiving the water pumped by said impeller. 
     
     
         14 . The water aerating device as claimed in  claim 13 , wherein said tube includes at least one protrusion extended outwardly from said tube for agitating the water flowing into said annular space of said receptacle and for generating an eddy current. 
     
     
         15 . The water aerating device as claimed in  claim 12 , wherein said receptacle includes a tubular member extended in an upper portion of said receptacle for forming an annular chamber between said tubular member and said receptacle, and for forming a chamber in said tubular member which is communicating with said annular space between said receptacle and said tube for allowing the air bubbles to flow upwardly through said annular space between said receptacle and said tube and said chamber of said tubular member. 
     
     
         16 . The water aerating device as claimed in  claim 12 , wherein said receptacle includes a cover disposed on top thereof and having a plurality of orifices formed therein for allowing the air to flow into said receptacle. 
     
     
         17 . The water aerating device as claimed in  claim 1 , wherein at least one air minimizing device is disposed in said compartment of said carrier. 
     
     
         18 . The water aerating device as claimed in  claim 17 , wherein said at least one air minimizing device is a helical spring member.